Interpolation of Missing Precipitation Data Using Kernel Estimations for Hydrologic Modeling

Table 1

Results of normality test with Shapiro-Wilk method for each -nearest neighborhood. DF represents degree of freedom and value means significance probability.

	4-NN			6-NN			8-NN
		DF	value		DF	value		DF	value
Ep	0.808	19	0.0015	0.740	19	0.0002	0.766	19	0.0004
Qu	0.831	19	0.0033	0.768	19	0.0004	0.721	19	0.0001
Tw	0.827	19	0.0029	0.789	19	0.0008	0.745	19	0.0002
Tc	0.839	19	0.0045	0.764	19	0.0004	0.742	19	0.0002
Co	0.817	19	0.0020	0.742	19	0.0002	0.763	19	0.0003
Reg	0.876	19	0.0186	0.858	19	0.0089	0.883	19	0.0242

(Ep: Epanechnikov, Qu: Quartic, Tw: Triweight, Tc: Tricube, Co: Cosine, and Reg: regression).